Struts 二 with Ajax
日期：2014-05-16 浏览次数：20743 次
Struts 2 with Ajax
Struts and Struts2 compared to a major improvement is support for Ajax. In this paper, look at the Div in Struts2 is how Ajax used to output the results, the main use of the Dojo.
First of all, we first create a simple use case, in this use case will be displayed on the screen of a user list, click on the userid list, the list below will show the user detailed information, showing detailed information of the user steps we will the use of Ajax.
First, create a web.xml
<? xml version = "1.0" encoding = "UTF-8"?>
<web-app version = "2.5" xmlns = "http://java.sun.com/xml/ns/javaee" xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi : schemaLocation = "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<filter>
<filter-name> struts2 </ filter-name>
<filter-class> org.apache.struts2.dispatcher.FilterDispatcher </ filter-class>
</ filter>
<filter-mapping>
<filter-name> struts2 </ filter-name>
<url-pattern> / * </ url-pattern>
</ filter-mapping>
</ web-app>
Second, create struts.xml
<! DOCTYPE struts PUBLIC
"- / / Apache Software Foundation / / DTD Struts Configuration 2.0 / / EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="ajaxdemo" extends="struts-default">
<action name="UserListingAction">
<result> / userlisting.jsp </ result>
</ action>
<action name="UserDetailAction">
<result> / userdetail.jsp </ result>
</ action>
</ package>
</ struts>
III, page: userlisting.jsp
Displays list of users
<% @ Taglib prefix = "s" uri = "/ struts-tags"%>
<html>
<head>
<s:head theme="ajax"/>
</ head>
<script>
function show_user_details (id) (
document.frm_user.userid.value = id;
dojo.event.topic.publish ( "show_detail");
)
</ script>
<body>
<s:form name="frm_user">
<h1> User Listing </ h1>
<s:if test="userList.size> 0 ">
<table border="1">
<s:iterator value="userList">
<tr>
<td>
<s:a href="#" onclick="javascript:show_user_details('%{id}');return false;"> <s:property value="id" /> </ s: a>
</ td>
<td>
<s:property value="name" />
</ td>
</ tr>
</ s: iterator>
</ table>
</ s: if>
<s:hidden name="userid"/>
<s:url action="UserDetailAction" />
<s:div href="%{d_url}" theme="ajax" listenTopics="show_detail" formId="frm_user">
</ s: div>
</ s: form>
</ body>
</ html>
IV, page: userdetail.jsp, used to display user details from userlisting.jsp load
<% @ Taglib prefix = "s" uri = "/ struts-tags"%>
<h1> User Details </ h1>
<s:if test="userDetails != null">
<table>
<tr> <td> Id: </ td> <td> <s:property value="userDetails.id" /> </ td> </ tr>
<tr> <td> Name: </ td> <td> <s:property value="userDetails.name" /> </ td> </ tr>
<tr> <td> Email: </ td> <td> <s:property value="userDetails.email" /> </ td> </ tr>
<tr> <td> Address: </ td> <td> <s:property value="userDetails.address" /> </ td> </ tr>
</ table>
</ s: if>
5, ajaxdemo.action.UserListingAction.java, to generate a list of data users
Struts and Struts2 compared to a major improvement is support for Ajax. In this paper, look at the Div in Struts2 is how Ajax used to output the results, the main use of the Dojo.
First of all, we first create a simple use case, in this use case will be displayed on the screen of a user list, click on the userid list, the list below will show the user detailed information, showing detailed information of the user steps we will the use of Ajax.
First, create a web.xml
<? xml version = "1.0" encoding = "UTF-8"?>
<web-app version = "2.5" xmlns = "http://java.sun.com/xml/ns/javaee" xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi : schemaLocation = "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<filter>
<filter-name> struts2 </ filter-name>
<filter-class> org.apache.struts2.dispatcher.FilterDispatcher </ filter-class>
</ filter>
<filter-mapping>
<filter-name> struts2 </ filter-name>
<url-pattern> / * </ url-pattern>
</ filter-mapping>
</ web-app>
Second, create struts.xml
<! DOCTYPE struts PUBLIC
"- / / Apache Software Foundation / / DTD Struts Configuration 2.0 / / EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="ajaxdemo" extends="struts-default">
<action name="UserListingAction">
<result> / userlisting.jsp </ result>
</ action>
<action name="UserDetailAction">
<result> / userdetail.jsp </ result>
</ action>
</ package>
</ struts>
III, page: userlisting.jsp
Displays list of users
<% @ Taglib prefix = "s" uri = "/ struts-tags"%>
<html>
<head>
<s:head theme="ajax"/>
</ head>
<script>
function show_user_details (id) (
document.frm_user.userid.value = id;
dojo.event.topic.publish ( "show_detail");
)
</ script>
<body>
<s:form name="frm_user">
<h1> User Listing </ h1>
<s:if test="userList.size> 0 ">
<table border="1">
<s:iterator value="userList">
<tr>
<td>
<s:a href="#" onclick="javascript:show_user_details('%{id}');return false;"> <s:property value="id" /> </ s: a>
</ td>
<td>
<s:property value="name" />
</ td>
</ tr>
</ s: iterator>
</ table>
</ s: if>
<s:hidden name="userid"/>
<s:url action="UserDetailAction" />
<s:div href="%{d_url}" theme="ajax" listenTopics="show_detail" formId="frm_user">
</ s: div>
</ s: form>
</ body>
</ html>
IV, page: userdetail.jsp, used to display user details from userlisting.jsp load
<% @ Taglib prefix = "s" uri = "/ struts-tags"%>
<h1> User Details </ h1>
<s:if test="userDetails != null">
<table>
<tr> <td> Id: </ td> <td> <s:property value="userDetails.id" /> </ td> </ tr>
<tr> <td> Name: </ td> <td> <s:property value="userDetails.name" /> </ td> </ tr>
<tr> <td> Email: </ td> <td> <s:property value="userDetails.email" /> </ td> </ tr>
<tr> <td> Address: </ td> <td> <s:property value="userDetails.address" /> </ td> </ tr>
</ table>
</ s: if>
5, ajaxdemo.action.UserListingAction.java, to generate a list of data users
免责声明： 本文仅代表作者个人观点，与爱易网无关。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。
